Current-motor.



J. W. LAURENT.

CURRENT MOTOR.

APPLIGATION FILED JULY 22, 191s. I

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\ INVENToR fm 20 Jaw/v /l/ /Mff/V .y/ o gy /9 H Arron/JEVS THE NURRISPETERS CO.. FwclrofLlTlfm.' WASHINGTON, D. c,

Patented (101.2111914.

J. W. LAURENT.

CURRENT MOTOR.

APPLIOATION FILED JULY 22, 191s.

1,1 14,489. Patented 0012.20, 1914.

3 SHEETS-SHBET 2.

WITNESSES INVENTOR THE MORRIS PErERS Co.. PHOTO-LITRO., WASHINGTUN. n.C.

By M

ATTORNEYS J. W. LAURENT.

CURRENT MOTOR.

APPLICATION FILED JULY 22, 1913.

1,1 14,489. Patented 001;. 20, 1914.

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'l I h Jia j@ J7 WIT/VESSES l l/VVENTI? CR. www ./a/f/V //1/ 4a/@fariATTHIVEYS f wmf@ UNl'lrED STATES PATENT OFFICE.

,JOHN WALLACE LAURENT, or sroKANE, WASHINGTON, Assierivon or ONE-THIRDTo WII'alZJJ-UE KELLENGER, 0F SPOKANE, WASHINGTON.

CURRENT-MOTOR.

To all 'whom t mag/'concern' .l

of Spokane, in thecountyl of Spokane' and State of'l/vashington, haveinvented a new and Improved'Current-Motor,of which the following is yafull, clear, vand exact description. I

My invention relates toa motor supported on a floating structure andadapted to be raised and lowered relatively to the stream, the motorwhen lowered, presenting a broadsidey upstream.

The novel features of the invention will be particularly. explained inthey specific description following. l

Reference is to be had to the accompanyof this specifi-l ing drawingsforming a part cation, in which similar characters of reference indicatecorresponding parts in all the views. a

Figure 1 is a side elevation of a motor and its supporting structureembodying my invention; Fig. 2 is a vertical section at right angles toFig. 1', the section being taken in front of the current wheel; Fig. 3is a sectional plan view; Fig. 4 is a detail sectional view of one ofthe float'elements and the clamp bars thereof; and Fig. 5 is a detail ofone kof the bearings for the current wheel. y

1n constructing a practical embodiment of my invention in accordancewith the illustrated example, longitudinal bars 10 are arranged in pairsto clamp a series of barrels 11 at each side of the structure, ashereinafter explained, to give buoyancy to the latter, the pairs oflongitudinal bars 10 being `connected by outer transverse frame bars 12and inner transverse frame bars 13. A vertical frame is erected on thefloat frame, and includes guide uprights 14 to guide the verticallyysliding motor frame 15 carrying a current motor 16. The frame 15 maycomprise side members 17, a top cross bar 18, 'a bottom cross bar 19,and an intermediate cross bar 19a. On the side members 17 of the slidingframe guide plates 20 aresecuredand project laterally tophave guidingengagement with the uprights 14. The lower end 14?I l at the down-streamside of the structure is hinged, being provided with a block 21 having ahinge connection 22 with the adjacent longitudinal bar 13, the hingeleaves rise `from the of the guide upright 14` y"Specification ofLetters Patent. Oct. 20, 1914i. `.Application led July 22, 1,913. SerialNo. 780,456, i i

23 being secured vrespectively to the block 21 and bar 13, as seeninFig. 1. Ar diagonal brace arm 24 extendsk fromnear theflower end ofthe hingedguide part 14a, and-its outer free end, when the part v14ai'sin the lowered position and in line withl the upper portion of theupright 14, maybe sprung into engagement with the adjacent outerlongitudinal bar 12, whereby the hinged lower end 14a`is braced 'againstthe pressure exerted on the current wheel 16. -`When the motor 16 israised to inoperative Iposition, the end 14a ofthe guide frame may beswung upwardly on its hinge outof the ,70

stream so that it will not engage floating logs `or the like and bedamaged. The transverse bars 12 are secured to uprights 2'thatlongitudinal bars 10 of the float frame, and said transverse bars may bebraced by diagonal braces 26, 27, extending to the uprights 14; thelatter may also have diagonal braces 14C disposed in a plane normal tothe braces 26, 27. In the lowered posi-` tion of the motor frame 15, theends of the top cross bar 18 thereof rest on stops 28 on the uprights14. Said uprights may be provided with friction rollers 29, for roll ingcontact with the vertical sides 17.

To raise and lower the motor frame a tackle is provided, consisting of arope 30 bent around a sheave 31 of the cross bar 18, and over sheaves32, 323011 the top bar 14b of the fixed frame, and downward to a windingdrum 33 having a crankhandle 34, said drum being suitably mounted in alaterally projecting frame 35 above the floats 11. f

The shaft 36 of the current wheel 16 turns in bearings 37 on thevertical side members 17 of the sliding frame, and the countershaft 38abo-ve the current wheels turns in bearings 39 on said side members. Theshafts 36, 38, have chain wheels 40 over which a sprocket chain 41 runs,for driving the shaft 38 from the current wheel. The shaft 38 has apulley 42 from which power is taken by a rope or belt (not shown), toany suitable machinery on shore. The end thrust of the shaft 36 of thecurrent-wheel is received by an angle bracket 43 (best shown in Fig. 5),the angular end 44 ofwhich receives the conact of the rounded end 36@ ofthe said sha t.

float elements, because their size and number can be adapted to the sizeof the structure It is advantageous to employ barrels as the and currentmotor, and in order to securely clamp the barrels in a convenientmanner, the longitudinal bars 10 are provided on their inner sides withpreferably round blocks 10, which are received in the ends of thebarrel, outside the heads 112L thereof, whereby the tightening up` ofbolts'lOb which extend through the pairs of bars 10, will firmly clampthe barrels in position.

By the described Construction a simple and strong structure is obtained,having prol vision for the convenient raising and lowering of the motorfor theproper bracing of the frame partsand the motor.V

Having thus described my invention, I1 claim as new, and desire tosecure by Letters Patent:

l. In a current motor, a float frame, a vertical sliding frame havingguided movement o-n the float frame, a vCurrent motor carried by thesliding frame, mea-ns for raising and lowering the sliding frame, thefloat frame having the lower portion of the guide member at the downstream side of the motor hinged to be swung upward when the currentmotor is' raised, and adapted to be lowered when the motor is to belowered.

2. In a current motor, a float frame having front and rear verticalguide members thereon, a vertically sliding motor frame having guidedmovement on said guide members, a y current motor Carried by the slidingframe, and means for raising and lowering said sliding frame, the rearvertical guide member on the float frame having its lower portion hingedto swing from aposition in line with the upper portion of the said guidemember to a raised position, and

v a brace `carried by saidk hinged portion of the. guide member, andadapted when in the lowered position to be pressed against a relativelyixed portion of the iioat lframe.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JOI-IN WALLACE LAURENT.

Copies of this patent may be obtained for ve cents', each, by addressingthe Commissioner of Patents.

Washington, D. C.

